As a single parent with at least one child in the household who is entitled to child allowance or child benefit, you can apply for the tax relief amount for single parents and thus for tax class 2.If you are a foreign recipient (creditor) of domestic investment income, you may be fully or partially relieved of capital gains tax under certain circumstances.Tax office can issue certificate for wage tax deduction if retrieval of electronic wage tax deduction characteristics (ELStAM) is not possible.If you wish to be exempt from German capital gains tax, you can obtain an exemption certificate under certain conditions.If you do not want your religious affiliation to be checked, you can make a blocking note. The blocking note obliges you to submit a tax return in order to pay any church tax on capital gains tax yourself.